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Physiologic parameters and energetic costs of sailing specifics actions during racingcruising
Author(s) -
Duvallet Alain Louis,
Duvallet Emilie,
Lhuissier François,
Beaudry Michele
Publication year - 2019
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.2019.33.1_supplement.534.6
Subject(s) - hoist (device) , treadmill , anaerobic exercise , vo2 max , simulation , running economy , mathematics , physical therapy , engineering , medicine , heart rate , mechanical engineering , blood pressure
We determined the energetic cost of sailing skills during racing‐cruising . The measurements are taken during four situations for two navigators practicing sailing regularly as professionals: hoist the mainsail, take reef and remove the one and go down lowering the jib sail. The values obtained during sailing skills were compared to the oxygen consumption during a treadmill test; and the gesture being done mostly by the arms, the VO2 was measured during a triangular test with an ergometer on the arm. The maximal oxygen consumptions are respectively on the treadmill and the arm ergometer for subject 1: 4.6 versus 4.2 l*min‐1 (91%) and for subject 2: 3.8 versus 3.5 l*min‐1 (92%). The arm VO2 is lower than the VO2max obtained on the treadmill. The arm work even at its maximum doesn't permit to express the whole oxygen utilization for both subjects. The gestures are realized on a racing‐cruising trimaran. The measures are made by indirect calorimetry, using a portable device (Cosmed) to measure the respiratory parameters. The duration of each skill permits to define these activities as endurance exercises (hoist the mainsail: 16 minutes, reefing: 6 minutes 30 seconds and 7 minutes, take and remove a ris: 4 minutes 45 seconds and 6 min, lower the jib sail: 5min30). During each gesture, a stable state was reached for the physiological parameters (VO2, VE, QR and FC). Different measures were taken (from 9 to 55) during this plateau allowing the calculation of average values. The VO2 mean (± standard deviation) are for hoist the mainsail 2.4 ±0.3 l*min‐1 (62.4% of the VO2max and 67.5% of the VO2arm), for take a ris 1.9 ± 0.25 l*min‐1 (41.6% and 45.6% respectively for subject 1 and 54.4% and 59.8% for subject 2), to remove the one 2.47 ± 0.11 l*min‐1 (54% and 59% for the subject 1 and 65.5 and 70.7 for subject 2) and for lower the jib sail 1.5 ± 0.1 l*min‐1 (38.9% and 43% respectively). The sailing specifics actions skills for racing‐cruising are endurance exercises realized by arm workouts. The training for contestants in this field has to be oriented toward these exercises looking to improve the VO2max during arm workout. That kind of training will permit to improve the quality of the gestures during competitions, with a decrease of the exhaustion and improvement of recovery. The values found can have their place in the compendium which lists human energy expenditure. This abstract is from the Experimental Biology 2019 Meeting. There is no full text article associated with this abstract published in The FASEB Journal .